ASUS rolls out new BIOS for Z790 motherboards targeting Intel CPU instability concerns
The new BIOS says to contain the expected microcode update.

Tech reviewers should now be gearing up to test the new microcode version “129”. Intel has promised to release the microcode update in mid-August, focusing on addressing instability in the 13th and 14th Gen Core “Raptor Lake” processors. The update is expected not to affect Turbo Boost, or overclocking. However, this will need to be verified, and we look forward to seeing how the microcode performs and whether it resolves the issues for potentially affected processors.
It should be noted, though, that the update will not fix already degraded CPUs that have been exposed to elevated voltages and are already showing symptoms of instability. Such processors will need to be returned to Intel for replacement.
The new BIOS is still in BETA and currently only covers the Z790 series. ASUS also claims that it improves system performance, though they have not provided specific details.
ROG MAXIMUS/STRIX/PROART/AYW Z790 Series Beta Bios 2503/1503
- Update microcode to 129 for Intel instability issue
- Improve system performance
dont use old cmo file
The BIOS links were shared by ASUS motherboard team and overclocker SAFEDISK.
ASUS Z790 BIOS update with Microcode 129 for Intel Raptor Lake instability:
- ROG MAXIMUS Z790 HERO Beta Bios 2503
- ROG MAXIMUS Z790 DARK HERO Beta Bios 1503
- ROG MAXIMUS Z790 HERO BTF Beta Bios 1503
- ROG MAXIMUS Z790 HERO EVA-02 EDITION Beta Bios 2503
- ROG MAXIMUS Z790 APEX Beta Bios 2503
- ROG MAXIMUS Z790 APEX ENCORE Beta Bios 1503
- ROG MAXIMUS Z790 FORMULA Beta Bios 1503
- ROG MAXIMUS Z790 EXTREME Beta Bios 2503
- ROG STRIX Z790-A GAMING WIFI Beta Bios 2503
- ROG STRIX Z790-A GAMING WIFI D4 Beta Bios 2503
- ROG STRIX Z790-A GAMING WIFI II Beta Bios 1503
- ROG STRIX Z790-A GAMING WIFI S Beta Bios 1503
- ROG STRIX Z790-E GAMING WIFI Beta Bios 2503
- ROG STRIX Z790-E GAMING WIFI II Beta Bios 1503
- ROG STRIX Z790-F GAMING WIFI Beta Bios 2503
- ROG STRIX Z790-F GAMING WIFI II Beta Bios 1503
- ROG STRIX Z790-H GAMING WIFI Beta Bios 2503
- ROG STRIX Z790-I GAMING WIFI Beta Bios 2503
- ProArt Z790-CREATOR WIFI Beta Bios 2503
- Z790-AYW OC WIFI Beta Bios 1662
Please note that the links provided are offered as is, and users should be aware of the potential risks associated with BIOS updates. It is recommended to refer to the motherboard manual for the correct BIOS update procedure.
Source: ASUS